6 Answers
6

I am going to answer my own question. Thanks to the user "SevenMachines" in ubuntuforums, I've found a way to disable overlay scrollbars for a specific application.
I did a shell script with the following (for eclipse, for example):

#!/bin/sh
LIBOVERLAY_SCROLLBAR=0 eclipse

Then, make it executable, and using the "Menu editor", changed eclipse to point to the script.

A more generic alternative to the above answers would be this simple script that I called "regular-scrollbars":

#!/bin/sh
LIBOVERLAY_SCROLLBAR=0 "$1"

Save that someplace on your path, and then you can use the menu editor to add "regular-scrollbars" before any command you want (as long as it only has one argument - try "@$" if you think you'll need more than one).

This means you won't have to make a new script for any other programs you want to revert to the old scrollbars.

I really like the bashrc alias example too though, you could probably make it more generic by providing a list of programs you want to revert and having bashrc loop over them, adding the aliases.